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Eastern White Pine Pinus strobus Longitudinal Resin Canal Thin-walled epithelial cell

Eastern White Pine Pinus strobus Longitudinal Resin Canal Thin-walled epithelial cell. Eastern White Pine Pinus strobus Transverse r esin c anal in fusiform ray Thin-walled epithelial cell. Eastern White Pine Pinus strobus Cross field pitting

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Eastern White Pine Pinus strobus Longitudinal Resin Canal Thin-walled epithelial cell

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  1. Eastern White Pine Pinusstrobus Longitudinal Resin Canal Thin-walled epithelial cell

  2. Eastern White Pine Pinusstrobus Transverse resin canal in fusiform ray Thin-walled epithelial cell

  3. Eastern White Pine Pinusstrobus Cross field pitting Two rows of ray parenchyma with fenestriform half-bordered pit pairs. Multiple rows of ray tracheids.

  4. Douglas-fir Pseudotsugamenziesii Longitudinal resin canal Thick-walled epithelial cells

  5. Douglas-fir Pseudotsugamenziesii Fusiform ray Thick-walled epithelial cells

  6. Douglas-fir Pseudotsugamenziesii Ray crossing area Ray parenchyma Ray tracheids Spiral thickenings – tend to be more obvious in earlywood.

  7. Douglas-fir Pseudotsugamenziesii Ray crossing area Ray parenchyma Ray tracheids Spiral thickenings

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